Spring suspension



` Aug. 16, 1932.

E. LYMAN 1,872,311

SPRING, SUSPENSION Filed Aug. l5. 1927 4 Sheets-Sheet l iWeb/222971KENNETH ix/MN Aug. 16,V 1932.- K. E'. LYMAN SPRING SUSPENSION Filed Aug.15. 1927 4 Sheets-Sheet 2 Zac/672,127 KENNETH E. LYMAN @y .ur

Aug 16, 1932-' 'I K. E. LYMAN 1,872,311

SPRING SUSPENS ION Filed Aug. l5. 1927 4 Sheets-Sheet 3 36 7\ @QQ 5' 4'32 a 30 40 4Z 46 45 L i3 3Q MF 4 Q @h @a Y \v\ 1 2 f im j? .fz l/ ZZ Z44 fo Z4 30a', E Zfwfzf 1 KENNETH ELYMAN @MMM Aug. 16, 1932. K E yMAN1,872,311

SPRING SUSPENS ION Filed Aug. l5.r 1927 4 Sheets--She'tl 4 7 f 'r1 22 Z4KENNETH iLYmN Patented Aug. 16, 1932 UNITED STATES KENNETH E. LYMAN, orCHICAGO, ILLINOIS,y AssI'GNfJRf'ro.malanni:BRAKE:COMPANY,,

E SOUTH BEND, INDIANA, AeeoEroEA'rIoN 'oEIELINoIs SPRING SUSPENSIONApplication led LAugust 15, 1927. Serial No. 212,979.

This invention relates to spring suspensions for vehicles and isillustrated as embodied in an automobile spring suspension.

One important object of the invention is to minimize the wear of thespring mounting and to obviate the necessity for lubrication by platingor otherwise coating the relatively movable parts with metallicchromium.

This gives an extremely hard surface which undergoes very little wearand which requires no lubrication.

Another feature of novelty relates to mounting the end of the springslidably between the flat faces of novel semi-spherical members whichare received in a hollow internally-spherical bracket secured to thevehicle frame.

The above and other objects and features of the invention, includingvarious novel details of construction, will be apparent from .thefollowing description of one illustrative `embodiment shown in theaccompanying drawings, in which:

Figure l is a side elevation of the chassis frame, and of the front andrear spring suspensions, with the front and rear axles shown in verticalsection;

Figure 2 is a sectionthrough one of the spring supports substantially onthe line 2 2 of Figure l;

Figure 3 is a corresponding section through another of the springsupports substantially on the line 3 3 of Figure l;

Figure 4 is a section on the line 4-4 of Figure 3 and showing the springsupport in front elevation;

Figure 5 is a section through the spring support of Figure 3substantially on the line 5-5 of Figure 3;

Figure 6 is a section through the spring support of Figure 2substantially on the line 6-6 of Figure 2; Y

Figures 7 8, and 9 are respectively top plan, bottom plan, and sideelevational views of one of the Semi-spherical members of the springsupport of Figures 3, 4, and 5; and

Figures 10, 11, and 12 are respectively top plan, bottom plan, and sideelevational views oi one of the semi-spherical members of the springsupport of Figures 2 and 6.

-The construction illustrated' 'includes -au f-clrassisiframe'l'arranged to'be supported by "front and rear semi-'elliptic springs 12*on a Afront aXle 14j andfa rearaxle '16. tT he present inventionrelatesA primarily tothe attachmentigg, *of the springs'l2-tovthe'chassisframe.

5 One endof each ofthe semi-'ellipticsprings l2 is* secured 'against'lengthwise movement 'byafb'olt or pin 18 passing'throughan opening inthe end ofthe spring'and-'through thea-g5() 7lbosses 20drawn centrallylof thebases 22 of semi-spherical'spring embracing membersone of whichis" shown in* detail iniFigureslQll, `andl12. Thebase of'each ofthese'members forms a flat lspring-engaging `faceywhi'le 'the'ggupperpart isin theform of Sectors or tongues "y x24 so Ekoyrmedfas tomake the eXterior fot the f deviceL substantially semi-spherical. Thetwo ,spring-*embracing devices, with the en'dl of the spring, 'aremounted in* an internallyspher-:vn

ical hollow` bracket'forme'd intwo pieces 26 'and28fsecuredfy together'byasten'ings such as "bolts p' 3Q and A"formed with an extension L532for' attachment to the chassis frarne'lO,l

` AThe other endof each of the springs is slid- 3,5

y'ably received between fthe vflat face "f tWO semi-Spherical' members3Q fwliichare shown 'in detail in Figures 7 ,8, and 9, and-'whicharesubstantially vthe Same as those' described 4above eXc'eptfthat they arenot Eformed with gm bosses 20 for the ypins orboltsv 18. -`These drawnsemi-spherical members, with the end of the spring, are housed in aninternallyspherical hollow bracket formed of two pieces 32 and 34secured together by astenings such,,85 as bolts 36 and which are formedwith brackets 38 to be attached to the chassis frame 10. In order topermit Suilicient lengthwise movement of the spring, the part 32 of thebracket is formed with an opening for the end :fqm of the spring whichmay be closed by a housi ing 40.v The housing 40 is in the form of adrawn stamping orV the like spot-welded or otherwise secured to thepart'32 of the bracket.

Both the brackets may be provided with-m5 suitable packing material 42held by stampings 44 secured to the brackets.

According to an important feature of the invention, lubrication of therelatively movabl'e parts is obviated, and the wear is very H00 greatlyminimized, by plating or otherwise providing the relatively movablesurfaces with coatings of metallic chromium. As best shown in Figure 5,the flat faces of the stampings 30 may be'provided with such coatings 46of metallic chromium, while yif desired the spring may be providedon'oppositejsides with coatings 48 of metallic chromium.

While one illustrative embodiment of the inventionhas been-describedin.detail, it is Y. L not my intention to limitits scope' to that Y.

particularembodiment or otherwise than by the terms ofthe appendedclaims. f Y

I claim: A e

` 1. A spring suspension including a leaf spring, an internallykAspherical hollow bracket, and a pair of semi-spherical membersv,provided withregistering bosses, said members .housed within saidbracket,

7 2.A A springsuspensl'onincluding'` a ball and socket joint 'providedwith flat faced mating ball sectionsarranged back to back each sectioncomprising tongues in its spherical surface, :and a bolt receiving bossprojecting from its flat surface.

3'. A springv suspension including a ball and socket joint provided witha flat faced 4mating ball sections arrangedbackrto back eachY sectionvcomprising tongues in its spherical surface.

4. A suspension ing two. members each having a fiat springengaging 'faceand integral tongues forming a hemispherical bearing surface, and aninternally i ing with said bearing surfaces.

5., A suspension for a leaf spring comprisi n Y ingV two members eachhaving a flat face i adapted to contact withthe springfin slid- Y ingrelation anda plurality of spacedtongues formed integral withfthe flatface and together forming a hemispherical bearing surface, and a brackethav-ing a spherical inner surface cooperating with the bearing surfaces.

.iV In testimony whereof, I have hereunto signed my name.L

KENNETH E. I JYBIAN.

for a leaf spring comprisspherical bearing member .cooperat-

